<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
    <meta http-equiv="Pragma" content="no-cache">
    <meta http-equiv="Expires" content="0">
    <title>Login</title>
</head>
<body>
<h2>登录</h2>
<form action="/login" method="post">
    <div>
        <label>用户名:</label>
        <input type="text" name="username" required>
    </div>
    <div>
        <label>密码:</label>
        <input type="password" name="password" required>
    </div>
    <button type="submit">登录</button>
</form>
</body>
</html>